#!/usr/bin/env ruby require 'tk' #unless /^8\.[1-9]/ =~ Tk::TCL_VERSION && !Tk::JAPANIZED_TK # require 'tkencoding' #end TkButton.new(nil, 'text'=>"Hello Ruby world!", 'font'=>TkFont.new('k14'), 'command'=>proc{print "Hello Ruby world!\n"; exit} ).pack Tk.mainloop